At AirPro, we take pride in designing and manufacturing custom fans tailored to our customers’ specific needs. The fan pictured in the video is still in production: but this gives us an opportunity to highlight some of the specialized features we integrate into our custom fan designs. AirPro designed this particular fan for an API 673 application.
Application: High-Temperature
We designed an extremely custom high-pressure, high-temperature steam exhaust fan for this emerging green energy technology application. The fan needed to handle very high temperatures up to 1300°F. For that, we used a stainless steel fan casing/housing, a special multi-carbon ring shaft seal, a monobloc bearing assembly with mist oil lubrication, an alloy 625 rotor with a special design for stresses induced by static, dynamic, and thermal loads. We also machined mounting surfaces for the bearing assembly and motor drive.
We delivered a custom high-temperature, high-pressure fan for a heat recovery steam generator (HRSG) application. Designed for temperatures as high as 840°F, the fan has a carbon ring shaft seal, a monobloc fan bearing assembly with oil lubrication, exterior fan insulation, and a raised access door with a flush interior design for the exterior insulation.
We produced this high-temperature burner fan with an efficient backward-curved design and a max temperature of 800°F. The custom design includes thermal insulation for a safe skin temperature and a heavy-duty fan base to prevent vibration.
We designed a high-temperature purge fan for this regenerative thermal oxidizer (RTO) system application. The purge fan blade profile is backward curved to process high airflow at medium pressures. Customized to handle high temperatures, the application called for inlet and outlet expansion joints, and 2” thick insulated housing and inlet box, and an Arrangement 8 direct-coupled drive motor.
Updated Application Page on High-Temperature Blower Fans
Air and heat are two essential components of industrial process manufacturing. Air serves as the conveyor, and heat is a transformer. In applications using high-temperature blower fans, both processes are happening together or in close proximity. That means the fans in these applications need to be able to take the heat, and in many cases, accompany corrosive gasses.
The following plug fan was rebuilt for a US steel company that heat treats customer supplied castings for automotive companies. After this user’s fan from another fan supplier failed, AirPro was asked to produce a dimensional & functional match. AirPro’s engineers reverse engineered the “model fan” and produced a “match.”